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otez555 [7]
3 years ago
6

What is f(5) for the function f(x) = 7x +4? f(5)=

Mathematics
1 answer:
Sindrei [870]3 years ago
8 0

Answer:

f(5) = 39

Step-by-step explanation:

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Hank estimate the width of the door to his classroom in feet. what is the reasonable estimate
lubasha [3.4K]
A reasonable estimate would be an estimate of 2.5 feet.
 
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3 years ago
i will give you brainliest and thanks and 5 star on all of my accounts on brainliest if its correct rip my points i have 9 now :
elena-14-01-66 [18.8K]

Answer:

A) answer c ; B) X+3.7=15.3 ; C) 15.3 - 3.7 = 11.6 ---> 11.6+3.7=15.3

Step-by-step explanation:

Solution for A: First you have to look for the line underneath the bar says 15.3 as this will represent the total amount of liters in the bucket altogether. This would be bar c since we also know that we have 3.7 liters added but are missing the amount that was previously inside the bucket.

Solution for B: Let X resemble the unknown amount of water. To solve B, we need to write an equation. We know that there was already an amount of water in the bucket prior to us pouring more in so X is our first addend. We then added 3.7 liters of water to the unknown amount so that is our next addend giving you X+3.7=15.3

Solution for C: Now that we know our equation, we do the inverse operation (subtraction) in order to figure out the missing amount of water. This means we do

15.3 - 3.7 = 11.6

4 0
3 years ago
Determine whether each expression was simplified correctly.​
astra-53 [7]

Answer:

Only b is correctly simplified.

Step-by-step explanation:

3 0
3 years ago
In a random sample of 5 residents of the state of Texas, the mean waste recycled per person per day was 1.9 pounds with a standa
sammy [17]
<h2>Answer with explanation:</h2><h2 />

The confidence interval for population mean is given by :-

\overline{x} \pm\ t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 5, since n<30 , so the test we use here is t-test.

Sample mean : \overline{x}=1.9\text{ pounds}

Standard deviation: \sigma=0.89\text{ pounds}

Significance level : 1-\alpha:1-0.99=0.01

By using the standard normal distribution table , the critical value corresponds to the given significance level will be :-

t_{n-1,\alpha/2}=t_{5-1,0.01/2}=t_{4,0.005}=4.604

Now, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas will be :-

1.9\pm\ (4.604)\dfrac{0.89}{\sqrt{5}}\\\\\approx1.9\pm1.832\\\\=(1.9-1.832,1.9+1.832)=(0.068,\ 3.732)

Hence, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas  = (0.068, 3.732)

5 0
4 years ago
Solve the inequality -d ≥ 0.5
Mariulka [41]

Answer:

d ≤ -0.5

Step-by-step explanation:

Multiply each term by -1

8 0
3 years ago
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